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Finding the Fourth Proportional to 624,104.40, 934,844.40 and 519,128.40

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Solution

The fourth proportional to 624,104.40, 934,844.40 and 519,128.40 is: 777,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,104.40 : 934,844.40 = 519,128.40 : x
  2. Step 2: Convert to fraction form
    624,104.40/934,844.40 = 519,128.40/x
  3. Step 3: Cross multiply
    624,104.40x = 934,844.40 × 519,128.40
  4. Step 4: Simplify right side
    624,104.40x = 485,304,277,620.96
  5. Step 5: Solve for x
    x = 485,304,277,620.96/624,104.40
  6. Step 6: Final answer
    x = 777,601.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.